1355725 has 24 divisors (see below), whose sum is σ = 1968128. Its totient is φ = 907200.

The previous prime is 1355713. The next prime is 1355741. The reversal of 1355725 is 5275531.

It is not a de Polignac number, because 1355725 - 2⁵ = 1355693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355693 and 1355702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10612 + ... + 10738.

2^1355725 is an apocalyptic number.

It is an amenable number.

1355725 is a deficient number, since it is larger than the sum of its proper divisors (612403).

1355725 is a wasteful number, since it uses less digits than its factorization.

1355725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 200 counting only the distinct ones).

The product of its digits is 5250, while the sum is 28.

The square root of 1355725 is about 1164.3560452027. The cubic root of 1355725 is about 110.6769548588.

It can be divided in two parts, 1355 and 725, that added together give a triangular number (2080 = T₆₄).

The spelling of 1355725 in words is "one million, three hundred fifty-five thousand, seven hundred twenty-five".